I have had the IUD out for a year and my last cycle was the shortest yet-21 days. I had brown spotting for a week before it started and pains in the ovaries during that time. I also get pain around days 7 or 8 and heavy clear discharge(probably ovulation?). I have had under arm pain and "thickening of the axilla" which you can feel as a lump. I had 2 mammos, 2 ultrasounds, a CT scan and an MRI to finally get to this conclusion. I also have nipple pain at different times in my cycle. I have read that it takes up to a year for the sex hormones to leave the receptors in the body so I think giving your body more time to sort itself out is ok. I highly doubt it is cancer. I was reading about early spotting in the cycle and it was talking about low progesterone causing this. I'm just trying to let everything happen naturally.